1222222123 has 8 divisors (see below), whose sum is σ = 1305992160. Its totient is φ = 1139771520.

The previous prime is 1222222121. The next prime is 1222222171. The reversal of 1222222123 is 3212222221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222222123 - 2¹ = 1222222121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222222123.

It is not an unprimeable number, because it can be changed into a prime (1222222121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327943 + ... + 331648.

It is an arithmetic number, because the mean of its divisors is an integer number (163249020).

Almost surely, 2^1222222123 is an apocalyptic number.

1222222123 is a deficient number, since it is larger than the sum of its proper divisors (83770037).

1222222123 is a wasteful number, since it uses less digits than its factorization.

1222222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659717.

The product of its digits is 384, while the sum is 19.

The square root of 1222222123 is about 34960.2935199349. The cubic root of 1222222123 is about 1069.1780810660.

Adding to 1222222123 its reverse (3212222221), we get a palindrome (4434444344).

The spelling of 1222222123 in words is "one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-three".